Infotainment, Chemistry, and Apostasy

In the normal course of things Th’ Gaussling gives school chemistry talks or demonstrations a couple of times per year and until recently, I had been giving star talks at a local observatory more frequently.  The demographic is typically K-12, with most of the audience being grades 3-8.  From my grad student days through my time in the saddle as a prof, I was deeply committed to spreading the gospel of orbitals, electronegativity, and the periodic table. I was convinced that it was important for everyone to have an appreciation of the chemical sciences.  I was a purist who knew in his bones that if only more people were “scientific”, if greater numbers of citizens had a more mechanistic understanding of the great intermeshing world systems, the world would somehow be a better place. 

In regard to this ideology that everyone should know something about chemistry, I now fear that I am apostate.  I’m a former believer.  What has changed is a newer viewpoint based on some observations.  

Chemical knowledge is highly “vertical” in its structure.  Students take foundation coursework as a prerequisite for higher level classes.  Many of the deeper insights require a good bit of background, so we start at the conceptual trailhead and work our way up. But in our effort to reach out to the public, or in our effort to protect self esteem, we compress the vertical structure into a kind of conceptual pancake.  True learning, the kind that changes your approach to life, requires Struggle.

What I find in my public outreach talks on science- chemistry or astronomy- is the  expectation of entertainment. Some call it “Infotainment”.  I am all in favor of presentations that are compelling, entertaining, and informative.  But in our haste to avoid boredom, we may oversimplify or skip fascinating phenomena altogether. After all, we want people to walk out the door afterwards with the answers. We want Science to be accessable to everyone, but without all the study.

But I would argue that this is the wrong approach to science.  Yes, we want to answer questions.  But the trick is to pose good questions.  The best questions lead to the best answers.   People (or students) should walk out the door afterwards scratching their heads with more questions.  Science, properly introduced, should cause people to start their own journey of discovery. Ideally, we want to jump-start students to follow their curiosity and integrate concepts into their thinking, not just compile a larger collection of fun facts. 

But here is the rub. A lot of folks just aren’t very curious.  As they sit there in the audience, the presentation washes over them like some episode of Seinfeld.  I suspect that a lack of interest in science is often just part of a larger lack of interest in novelty.  It is the lack of willingness to struggle with difficult concepts.  But that is OK.  Not everyone has to be interested in science.

Am I against public outreach efforts in science?  Absolutely not.  But the expectation that everyone will respond positively to the wonders of science is faulty.  It is an unrealistic expectation on the 80 % [a guess] of other students who have no interest in it.   I’m anxious to help those who are interested.  It’s critical for students interested in science to find a mentor or access to opportunity.  But, please God, spare me from that bus load of 7th graders on a field trip. 

What we need more than flashier PowerPoint presentations or a more compelling software experience is lab experience.  Students need the opportunity to use their hands beyond mere tapping on keyboards- they need to fabricate or synthesize. You know, build stuff. 

It is getting more difficult for kids to go into the garage and build things or tear things apart.  Electronic devices across the board are increasingly artifacts of microelectronics.  It is ever harder to tear apart some kind of widget and figure out how it works.  When you manage to crack open the case what you find is some kind of circuit board festooned with cryptic resin-encased devices. 

The emphasis on information technology bypasses the fact that we still need to build things.  Kids need to develop their mechanical skills. And they do that by building things. 

Urinetown- Hail Malthus!

When a friend said he had landed a part in a local production of the musical “Urinetown“, I did what most people do.  I shook my head slightly as if to dislodge some interfering muck from my ears and sputtered “Wha, what?”.  I could tell he was weary of this response. To his credit, he politely explained some of the highlights of the show. 

Urinetown is a musical farce about a future with a water shortage so severe that even the flow of urine has to has to be regulated.  Originally slated to open on 9/11/01, the opening was delayed for a rewrite.  In the story, bald political corruption and dastardly corporate greed work together against a Gotham City backdrop to monopolize public toilets and exploit the need of the masses to … pee.  When urinating in the bushes is outlawed, only outlaws will urinate in the bushes.  And if caught, violators are summarily arrested and taken to Urinetown by officers Lockstock and Barrel where they suffer the consequences of their misdeed. 

Officer Lockstock serves as both constable and narrator in this self-referential satire about the collusion of business and government.   UGC (Urine Good Company) has a government sanctioned lock on the “Amenities”, public pay toilets, and enforces their use through corrupt police on the take.  But when the government raises the fee for the use of an Amenity on behalf of their corporate paymasters, ostensibly to pay for continued “corporate research”, a rebellion begins and ends finally with a Malthusian note.

I will refrain from disclosing further details about the story.  I will say that I thoroughly enjoyed the show and heartily recommend it to friends and colleagues. 

Friday Link-o-Rama

The Russian cruise missile submarine Kursk went down in the Barents Sea, killing all aboard.  The first link has interesting pictures of the remains of the sub after it had been recovered. The second has interesting background information.

Need a spectrograph for your backyard telescope?  Check out this cool instrument from SBIG.  The good folks at Brookhaven have a table of nuclides online as well as a “Nuclear Wallet Card“. Golly, maybe one day we’ll have electricity too cheap to meter…

Check out the Deep Space Exploration Society- DSES.  They have resurrected a pair of dishes for the purpose of amateur radio astronomy.  They have been doing a sky survey at 1420 MHz.

Looking for something more refractory than the head of Karl Rove?  Check out FiberFrax.

Where are all the BA/BS organic chemists?

Over the years I have interviewed many hopeful candidates for a position of entry level BS/BA bench chemist in a synthesis lab.  Recently, I have interviewed a couple of candidates for synthesis chemist position and have refreshed myself with the challenge. 

It is surprisingly difficult to find and hire a decent candidate for position as a synthetic chemist at the bachelors level.  In fact, I am having trouble finding fresh BS/BA graduates that can show me the mechanism for the acid catalyzed hydrolysis of an ester, or can suggest a reagent for the reduction of benzaldehyde to benzyl alcohol.  These are fundamental transformations and a BA/BS in chemist should be able to go to the board and noodle through a little bit of arrow pushing.

Most of the candidates sent in by our favorite temp agency are analysts either by temperament or by experience.  Granted, analysts may be the meat and potatoes of the temp chemist trade.  But what astonishes me is the small number of candidates out there with more than 2 semesters of organic chemistry and an even smaller number with any inorganic lab experience at all. 

In previous searches we have looked for BA/BS people from an ad in C&EN.  Rarely did we find that students had taken an advanced organic class/lab, let alone an organic qual class.  I know that such classes are offered out there.  Are all of these bachelors level students who take advances coursework going to grad school or med school?  Maybe most of them are.

As a former supervisor of undergraduate research, I am tickled pink that bachelors students are getting experience with advanced equipment, but we still need to graduate people who can make a target molecule and fish it out of a product mixture.  I’m glad that Bobby or Suzie can do capillary electrophoresis or use a peptide synthesizer to make a decapeptide.  I just hope that a few students are learning how to take a substrate through at least two steps of a literature procedure synthesis and then purify by fractional distillation or a recrystallization.  Furthermore, I hope that chemistry departments are still hiring an occasional mainstream organic chemist or inorganic chemist who can pass along lab techniques.

Perhaps the bachelors organikkers are drawn to grad school for advanced education.  That is what I did.  But I’m still shocked by the number of bachelors level candidates I see that show very little retention of organic concepts, apparently the result of disuse in their junior or senior years. 

Part of this problem might be geography as well.  My region does not have the industrial legacy that other regions have.  Perhaps the situation might be different in NJ, CT, or TX. 

Sorry. I’ve filled the position, so don’t send a resume.

A380 Evacuation Test

Here is a link showing the evacuation of an A380. This airplane disgorged 873 people in 77 seconds.   So I’m thinking, what if you don’t have a planeload of orderly Germans who know how to get moving? What if you had a load of fat, jetlagged American touristas with expensive stuff in the overhead storage? You’d never get out of that airplane alive because some nimrod would have to get up and grab something out of the inside of a zipped bag, dooming everyone to incineration.

When one of these meat wagons eventually goes down, it is going to be like a small town got wiped out.  Like a screaming village falling out of the sky.  In a water landing, this thing is going to cartwheel like a drunken gymnast when a wing dips and grabs the water, and from the parts of the fuselage that shredded open will fly whole rows of horrified passengers, some still gripping their bags of pretzels.  The cabin sections will come to a halt and sink like a stone. 

Oh.  Well, I guess most of them do that.  Regardless, it ain’t gonna be pretty.

Here is a test of the braking system of the A380.  Ever wonder what happens when a big turbofan throws a blade?  The folks at Rolls Royce released this video of a test.  P&W released one as well.  This is what you try to avoid when working around jet engines.

Boron Cosmochemistry

Next time you wash your laundry with borax, pause for a moment and consider the path those boron atoms took to get to your dirty shirts.  The Big Bang started the universe with H, He, and maybe a bit of Li.  The rest of the periodic table had to be produced by nuclear reactions within the core of a star or during the explosion of a star.  This occurs through either the fusion of charged nuclear particles (nuclei included) or absorbed neutrons to nuclei, perhaps followed by a decay cascade.  Note to reader: astronomers are in the habit of referring to elements heavier than helium as a “metal”. 

In the core of a star there exists a complex kinetic circus of multiple simultaneus synthetic channels involving both atomic weight buildup and disintegration.  Nuclei less sensitive to the reaction conditions may accumulate and delicate nuclei like boron have but a fleeting existance and are consumed.  In addition to stability to the reaction conditions, particular combinations of protons and neutrons tend to be more stable and accumulate if only by the lack of propensity to decay. 

While the elements C, N, and O are cosmically quite abundant, at least in comparison to the rest of the elements (3 to 92), the elements Li, Be, and B (LiBeB) are relatively scarce. 

Because boron was too heavy for Big Bang nucleosynthesis and too reactive to accumulate in a stellar core, it’s cosmic abundance is low.  What little that is found did not arise as simple boron ejecta mechanically boosted into the interstellar medium by an explosion or as entrained mass from stellar wind.  It was formed from more abundant elements like CNO that had already been ejected- elements that would be subjected to a barrage of highly energetic particles.

LiBeB are thought to be “spallation” products from interstellar CNO collisions with cosmic rays.  From the linked chart, we can see that C, N, and O are relatively abundant.  So over a multibillion year timeframe of stellar evolution, early massive stars can live and die, dispersing metals into nearby space.  Accumulated heavy elements can then be exposed to cosmic ray fragmentation.  The source of the cosmic ray particles in these collisions is somewhat up in the air.  Some of the latest thinking suggests that these energetic cosmic rays yielding spallation products are from especially energetic sources like Wolf-Rayet stars or type II supernova events.  There is an indication that boron can come from two spallation channels- cosmic ray and neutrino-induced spallation of carbon. 

So, the picture thus far- boron arises from the energetic collision of particles outside of a star.  Heavier nuclei will fragment under cosmic ray bombardment and some combination of B-11 and B-10 are formed.  What is interesting is that this is a dispersive phenomenon.  By contrast, on earth, boron is found in deposits as the hydrate of the alkali metal salt of the oxide- Borax.  There are a variety of distinct mineral compositions that contain boron.  On earth, a bit of the dispersed boron was somehow concentrated into ore bodies.  This is where geology kicks in.

Hydrothermal action near subduction zones can dissolve borates in hot, pressurized water and deposit them at the surface where the solid borates come out of solution on cooling.  This process evidently partitions the isotopes of Boron slightly.  Over time the process continues until geological events interrupt the deposition process.  If the solubility of the borates is relatively low at surface temperatures and pressures, then weathering will not further disperse them into the hydrological cycle.  Thus they form a deposit.  Layers of sediment accumulate over the borax deposit and eventually geological processes move the layer underground. Eventually, uplifting, weathering, and mining makes the deposit accessible.  Through the miracle of marketing, distribution, and 18-wheeler trucks, this spallation product can be used to clean that unsightly mustard stain from your shirt.

News Flash! Most energetic supernova ever observed was detected in the galaxy NGC-1260 by Chandra.

A beautiful day in the neighborhood

This early May morning was crisp and sunny in our small neighborhood wetland park. Looking west through polarized lenses, the scattered cumulus clouds stood out against an azure blue sky and above fresh snow in the high country. The drone of a Cessna overhead lowered in pitch as the pilot throttled back to decend a bit.  Gonna buzz somebody’s farm from the sound of it.  The fresh layer of snow covers the front and back ranges of the Rockies down to what I’d estimate as the 6000 ft level just a few miles west.  Missed snow by a thousand feet of elevation yesterday.

In the marsh, last seasons cattail stems bounce enthusiastically as red-winged blackbirds jump from stem to stem, pausing for a moment to make their call.  As they sing the long black triangle of their beaks bisect open and a shrill call issues.  As they call their splayed tails drop in unison with the sound, causing the cattail to nod in time with their song. 

These birds are scrappy buggers.  Frequently they join in squabbling groups while in flight to settle some kind of dispute known only to them.  As quickly as it started it is finished and the individuals disperse.

Alberto Gonzales as Jungian Archetype

For a good essay on the Alberto Gonzales mess, see The Smirking Chimp.  Th’ Gaussling has been searching for a Jungian archetype representing people who are “never in doubt, but frequently wrong”.  Maybe Gonzo is the man. 

There have been many possible nominees in the Bush II administration- POTUS, Cheney, Wolfowitz, Rumsfeld, etc. But Gonzo seems to be the most tragic of the lot.

Note to future generations: I was going to further criticize POTUS, but given that he is sure to be savaged by historians, I’ll just stand clear and let experts have at it.

Dammit. The three horses I bet on in the Kentucky Derby all lost.